Use of plant-defense hormones against pathogen-diseases of postharvest fresh produce

Poveda, Jorge

doi:10.1016/j.pmpp.2020.101521

Cited by 46 publications

(38 citation statements)

References 112 publications

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“…Application of different biomaterials (edible coatings and films, essential oils, jasmonic acid, plant-derived products, etc.) has been previously recommended by several studies to preserve postharvest storability of fresh horticultural products (Chen et al, 2019;Kahramanoğlu 2019;Xin et al, 2019;Elkhetabi et al, 2020;Poveda, 2020;Riva et al, 2020). In most of those studies, the high efficacy of the plant extracts was correlated with the reduction in the RR of the products.…”

Section: Discussionmentioning

confidence: 99%

“…Postharvest application of biomaterials (edible coatings and films, essential oils, jasmonic acid, plant-derived products, etc.) has been suggested by several studies to improve the storability of horticultural products (Hassanein et al, 2018;Ncama et al, 2019;Chen et al, 2019;Kahramanoğlu 2019;Troyo and Acedo, 2019;Xin et al, 2019;Zudaire et al, 2019;Riva et al, 2020;Elkhetabi et al, 2020;Poveda, 2020) and orange fruits (Palou et al, 2015;Chen et al, 2019;Moraes Bazioli et al, 2019;Moosa et al, 2019). Different works demonstrated the antifungal activity of different plant extracts against fungal pathogens of citrus fruit (Tayel et al, 2016;Karchoufi et al, 2018;Pinto et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Combined effect of hot water dipping and Cistus creticus L. leaf extracts on the storage quality of fresh Valencia oranges

Kahramanoğlu

Usanmaz

Alas

et al. 2020

Folia Horticulturae

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This research was designed to test the combined efficacy of hot water dipping (HWD) and leaf extracts of Cistus creticus L. subsp. creticus on the storage quality of fresh Valencia oranges. Experiments were laid down according to a completely randomised design with 10 different treatments. Five replications, with five fruits in each replication, were used in the current study, and research was designed to continue for 150 days. Quality characteristics were observed with 30-days interval. The applications of this study were (1) Control [dipping in water at 25°C for 5 min]; (2) HWD at 50°C for 5 min; (3) HWD + Additives (A) [Arabic gum (0.2%), potassium sorbate (0.05%), citric acid (0.05%) and vitamin C (0.05%)] at 50°C for 5 min; (4) Additives alone at 25°C for 5 min; (5) 1.0% C. creticus leaf + HWD + A; (6) 1.0% C. creticus leaf + A; (7) 0.5% C. creticus leaf + HWD + A; (8) 0.5% C. creticus leaf + A; (9) 0.5% C. creticus leaf + HWD and (10) 0.5% C. creticus leaf. According to the results obtained, both the HWD and C. creticus, alone or in combination, were effective in preserving orange weight during storage, preventing pathogenic decay, maintaining visual quality and fruit firmness, delaying the reduction in titratable acidity, increasing ascorbic acid content and reducing respiration rate of the orange fruits. Results also suggested that the combined effect of HWD with C. creticus leaf extracts provided the highest efficacy.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Combined effect of hot water dipping and Cistus creticus L. leaf extracts on the storage quality of fresh Valencia oranges

Kahramanoğlu

Usanmaz

Alas

et al. 2020

Folia Horticulturae

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“…Results highlight that both SA concentrations of 0.5% and 2% significantly improved the biocontrol of the efficacy of both antagonists with a disease severity of less than 20%. Several studies have demonstrated the ability of SA to trigger systemic resistance in plants and protect against pathogen attacks [29,53].…”

Section: Discussionmentioning

confidence: 99%

“…Salicylic acid (SA) and several components of the SA pathway, including the methylated derivative of SA, are known to be among the signals contributing to systemic acquired resistance (SAR) [62]. Recently, the role of SA in SAR and its relationship with various SAR signals have been well reviewed [29,62].…”

Section: Discussionmentioning

confidence: 99%

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Improving the Biocontrol Potential of Bacterial Antagonists with Salicylic Acid against Brown Rot Disease and Impact on Nectarine Fruits Quality

et al. 2021

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The main objective of this study was to evaluate the ability of both antagonistic bacteria Bacillus amyloliquefaciens (SF14) and Alcaligenes faecalis (ACBC1) used in combination with salicylic acid (SA) to effectively control brown rot disease caused by Monilinia fructigena. Four concentrations of salicylic acid (0.5%, 2%, 3.5%, and 5%) were tested under in vitro and in vivo conditions. Furthermore, the impact of biological treatments on nectarine fruit parameters’ quality, in particular, weight loss, titratable acidity, and soluble solids content, was evaluated. Regardless of the bacterium, the results indicated that all combined treatments displayed a strong inhibitory effect on the mycelial growth of M. fructigena and disease severity. Interestingly, all SA concentrations significantly improved the biocontrol activity of each antagonist. The mycelial growth inhibition rate ranged from 9.79% to 88.02% with the highest reduction rate recorded for bacterial antagonists in combination with SA at both concentrations of 0.5% and 3.5%. The in vivo results confirmed the in vitro results with a disease severity varying from 0.00% to 51.91%. A significant biocontrol improvement was obtained with both antagonistic bacteria when used in combination with SA at concentrations of 0.5% and 2%. The lowest disease severity observed with ACBC1 compared with SF14 is likely due to a rapid adaptation and increase of antagonistic bacteria population in wounded sites. The impact of all biological treatments revealed moderate significant changes in the fruit quality parameters with weight loss for several treatments. These results suggest that the improved disease control of both antagonistic bacteria was more likely directly linked to both the inhibitory effects of SA on pathogen growth and induced fruit resistance.

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Colorado potato beetle exploits frass‐associated bacteria to suppress defense responses in potato plants

Gao

Yang

et al. 2022

Pest Management Science

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BACKGROUND: Colorado potato beetle (CPB; Leptinotarsa decemlineata) is a destructive quarantine pest that develops broad physiological adaptations to potato plants. During feeding, CPB deposits a copious amount of wet frass onto the surface of leaves and stems that remains in place for long periods. Insect behaviors such as feeding, crawling and oviposition are able to mediate plant defenses. However, the specific role of CPB defecation-associated cues in manipulating plant defenses remains unclear.RESULTS: CPB larval frass significantly suppressed potato polyphenol oxidase activity and enhanced larval growth on treated potato plants. The incorporation of antibiotics into larval frass triggered higher jasmonic acid (JA)-regulated defense responses in potato plants compared with antibiotic-free frass. Four bacterial symbionts belonging to the genera Acinetobacter, Citrobacter, Enterobacter and Pantoea were isolated from larval frass and suppressed plant defenses. After reinoculation of these bacteria into axenic larvae, Acinetobacter and Citrobacter were found to be highly abundant in the frass, whereas Enterobacter and Pantoea were less abundant probably due to the negative effect of potato steroidal glycoalkaloids (SGA) such as ⊍-solanine. Furthermore, direct application of Acinetobacter and Citrobacter to wounded potato plants significantly inhibited the expression of genes associated with the JA-mediated defense signaling pathway and SGA biosynthesis. CONCLUSION: Our findings demonstrate that CPB exploits frass-associated bacteria as a deceptive strategy of plant defense suppression, adding an interesting dimension to our understanding of how CPB successfully specializes on potato plants.

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Use of plant-defense hormones against pathogen-diseases of postharvest fresh produce

Cited by 46 publications

References 112 publications

Combined effect of hot water dipping and Cistus creticus L. leaf extracts on the storage quality of fresh Valencia oranges

Combined effect of hot water dipping and Cistus creticus L. leaf extracts on the storage quality of fresh Valencia oranges

Improving the Biocontrol Potential of Bacterial Antagonists with Salicylic Acid against Brown Rot Disease and Impact on Nectarine Fruits Quality

Colorado potato beetle exploits frass‐associated bacteria to suppress defense responses in potato plants

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